LG 47LN575V Intermittent restarts

[sordids999]

Hello Guys

had this tv a few weeks now its fine one minute then a few weeks later it will restart itself then fine again after leaving it off for a few days but back to the same fault again which seems to be a a very random intermittent fault

i have added pictures and a video

voltages

GND GND
12V=11.9V N.C=24.4V
12V=11.9V 12V=11.9V
GND GND
24V=24.4V 24V=24.4V
GND GND
3.5V=3.3V PDIM2=1.08V
3.5V=3.3V PDIM2=1.08V
PWR-ON=3.3V DRV-ON=3.16V

could a bad led bulb cause this ?

thanks


VIDEO:https://www.youtube.com/watch?v=bcR0...ature=youtu.be

[ReeceyBurger123]

Re: LG 47LN575V Intermittent restarts

I had the same issue on the 42" version it happened when ever I pressed "settings" on the remote. I ended up reflashing the firmware sorted the issue.

[sordids999]

Re: LG 47LN575V Intermittent restarts

How is this done Reece ?

[ReeceyBurger123]

Re: LG 47LN575V Intermittent restarts

Will see if I can find the firmware for this set, then you will need a service remote if you have one ?

[sordids999]

Re: LG 47LN575V Intermittent restarts

I have a URC3940 which I have used in the past to access LG TV's but I can't find no firmware for this model

[sordids999]

Re: LG 47LN575V Intermittent restarts

so i got into the service menu and done a factory reset ill try and test it also would it be worth changing the main board ?

[ReeceyBurger123]

Re: LG 47LN575V Intermittent restarts

Ok let us know what happens mate, if not we can start other troubleshooting methods.

[sordids999]

Re: LG 47LN575V Intermittent restarts

update:
realised today i had a 42LN578V tv with cracked screen and the parts seem the same so i have swopped this into the 575V i will update again soon

[ReeceyBurger123]

Re: LG 47LN575V Intermittent restarts

Forgot to update, how did it go ?